[{"word":"cast-iron","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A hard and brittle, but strong, alloy of iron, carbon, and silicon, formed by casting in a mould.","synonyms":[],"antonyms":[],"example":"Cast iron is popular for cookware where an even heating temperature is important."}],"synonyms":[],"antonyms":[]},{"partOfSpeech":"adjective","definitions":[{"definition":"Made of cast iron.","synonyms":[],"antonyms":[],"example":"I use a cast-iron skillet for frying pancakes."},{"definition":"Durable; tough; resiliant.","synonyms":[],"antonyms":[],"example":"Ernest has a cast-iron constitution and never gets sick."},{"definition":"Inflexible or without exception.","synonyms":[],"antonyms":[],"example":"The school's cast-iron policy on admissions fees left no leeway for needy students."}],"synonyms":["bulletproof","impervious","iron","robust","unshakable","iron-clad","stern","unrelenting","unwavering"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/cast%20iron","https://en.wiktionary.org/wiki/cast-iron"]}]